Loose-leaf binder



NEW. 11, 1924.

J..C. DAWSON LoosE LEAF BINDER Fille! ilnrch 21, 1924 Patented Nov. 11, 1924.

NETE@ STATES asians err eri-fies,

JAMES C. DAWSON, OF WEBSTER GROVES, MISSOURI, ASSGqNDB TO ELMA N. DAWSON,

OF WEBSTER GBIOVES, MISSOURI.

LOOSE-LEAF BINDER.

Application filed March 21, 1924. Serial No. 700,811.

To all whom t may concern.'

Be it known that I, JAMES C. DAWSON, a citizen of the United States, and resident of Webster Groves, county of St, Louis, and State of Missouri, have invented certain new and useful Improvements in Loose- Leaf Binders, of which the following is a specification, and which are illustrated in the accompaning drawings, forming a part thereof.

This invention relates to loose leaf binders and has fory its principal object to reduce the cost of production by providing a simple structure that permits the parts to be easily formed and assembled. Further objects and advantages of the invention will become apparent as the disclosure proceeds and the description is read in connection with the accompanying drawing, in which- Fig 1 is a fragmentary perspective view of a binder embodying the invention;

Fig. 2 is a plan view of a blank from which the base member of the paper holding` devices is formed;

ig. 3 is a fragmentary sectional view taken on the line 3-3 of Fig 1,

Fig. 4 is a cross section taken on the line 4-4 of Fig. 1.

The binder may include a pair of covers 10 and 11 hinged to a back 12 upon which are secured leaf retaining devices forming the subject matter of this invention.

These devices include a base 13 and a rock shaft 14 having hooks 15 at its ends that are received in perforations in the sheets to be retained. The base is preferably formed up from a blank illustrated in Fig. 2 by bending the side edges downwardly along the lines 16 and 17 to form flanges 18 and 19 and by bending the ends along the lines 20, 21, 22 and 23 to form the downwardly extending end fianges 24 and the tabs 25. The lines 16 and 17 are spaced from the side edges 26, 27, 28 and 29 of the end projections on the blank and therefore the side flanges 18 and 19 are likewise spaced from the edges 30 and 31 of the end flanges 24. The rock shaft 14 lies along the flange 18 and this flange cooperates with the edges 31 to form bearings in which the shaft is journaled. The flange 18 is preferably notched adjacent to its ends, as indicated at 32 and 33, and the end portions 34 are bent, as indicated at 35, Fig. 4, to extend slightly under the rounded surface of the rock shaft 14.

These bent portions may be of only very flange 18, and the edges 31 of the flanges 24l are sufficient bearings for the shaft.

End play of the shaft is prevented by Contact of the hooks 15 with the shoulders formed by the ends of the flange 18 and the aligned edges 36 of the body portion which preferably remains substantially Hat.

The hooks 15 have notches 38 adjacent to their free ends which serve as catches to engage the base at the shoulders 39; The spacing between the lines 16 and the edges 27 and 29 makes these shoulders sufficiently wide tol accomodate the hooks, but the corners of the flange 19 may be cut away as indicated at 40 on the blank, Fig 1, to prevent any interference with the proper engagement of the hooks.

From the foregoing it will he clear that the paper .holding devices embodying this invention may be made with a minimum of material and require only simple forming operations that may be accomplished at low cost. The assembly of the rock shaft with the base is easily accomplished and the bearings for the shaft, while ample for all purposes and use, require no expensive forming operations.

I claim as my invention:

l. A temporary binder comprising side covers and a connecting back portion, asheet metal base fixed to the back portion, including flanges extending downwardly from the sides of the base, a tab including a downwardly extending portion at one end of the base, having its edges spaced from the fianges, a rock shaft journaled between one of the fianges and the edge of the downwardly extending portion of the tab, and a hook carried by the rock shaft having a catch for engagement with the base adjacent to the opposite side.

2. In a temporary binder, a sheet metal base having downwardly extending flanges v at each side, a tab at one end including a downwardly extending portion havin one edge spaced from the corresponding ange, a rock shaft between said edge and flange, the bottom portion of the flange being bent inwardly under the rounded surface of the Y shaft and binding' ii", against said edge, and

a mok shaft jmnnaled between one Sde Henhe and he adjacent edges of the mlm, an@ hooks; en ne rock shaft having catches fm engagement Wh the base between 'the other YSide Sanne :md the Corresponding' edges 0f the tabs.

JAMES C. DAVVSN, 

